Spring-oiling device.



R. B. SEMMELRQTH.

'SPRINGy 01MB Gli DEVICE.- 'rrLloA'ron 'Hummm 2o, '1914. l

Patented Omi-20,191.4

WHO,

. iran safe Parana? orme nossifrnn B, sEMMEnRoarLo-nBUFFALO, NEW

. srmueioinrno navos.`

l Improvements in Spring-@lling Devices, of

which the following is specification.

The general objects of this invention are to increase the efliciency of a lubricant in a vehicle-spring and to broaden the lubripat.- ing area inv such a spring. Heretotore springs have been provided, wherein were located narrow longitudinal ducts for the passage of a lubricant therethrough from one leaf lto another; but, the lubricant in such springs lremained mostly in thechannels anddid not atta-in the resuits desired.

My improved spring is provided with herring-bone duc-ts which have a main channel and a. series of feeders arranged at. spaced intervals along the main channel, the ducts being fedby a.v lubricant through the pint-les arranged inthe ends of the sprinof.

Other objects will appear and bc `oetter.

understood from that embodiment of muy invention of which the following is a speck fication, Areference being had to the accontpanying drawings forming part hereof7 in which:

Figure l is a side elevational view of inv improved vehicle'spring. Fig. Q is an enlarged detail longitudinal sectional vieu' of one-end of the spring. Fig. is a horizoin tal cross sectional view takenvon' the line 3 5-3 in'Fig. 2. Fig. i is a. detail perspective view of the knuckle portion of the uppermostleaf. i AS. shown in the .dran-'ings' the spring which is generally indicated by a is of the usual'shape and is composed of the leaves l, lG, TJ S, 9. and l0. `I have shown this illustrating the present embodiment en the invention and .it is to be understood tlzfit. any quantity of leaves may be used vfiti, equal results. The spring a as shown 1n Fig. 1 is mounted on a vehicle such as an automobile. chassis b, and is picotally secured thereto by 'the pintles 11. This form of connection is the usual Connection formed in springs of this type and consists of the upper leaf 4 being provided at its outer ends with the knuckles 12T which fit around the pintles l1, andthe chassis-beam c is pro! as is clearly shown. The'parts are retained together by the nuts 1 4- 14 which are` mounted at the ends ofthe pint-les. l l

The pintle is bored as indicated at 15 for a portioniof its length substantially equal to is disposed angularly and communicates with an annular channel 16 provided on the periphery of the pintle at approximately the middle of its length. Thus it will be seen that this annular slot or channel 16 has direct communication-with the outer end of the bore 15.

The leaves of the spring are provided atA their `under surface-s 'with the channels or dutcs 17. ln the uppermost-leaf 4: a bore or passage 18 is provided inthe knuckle portion 12A and thus affords communication hetxveen the channellG'of the pintle and the duct 17 inthe sprinf.v Therefore, it willbe Aseen Athat upon a'lubricant, such as oil,

bore 15, the lubricant will eventually'find its way through the passage 1S and in'to the duct. 17, whereupon, by Yvirtue of the. spring leaf bei-ng bowed, gravity will cause the lubricant to travel along the duct.. The duct is provided with a series of oppositelv dispos'eii feeders 19 Whiehare arranged at variousiiitervals along the duct-and thus admit of theiubricant spreading thereinto. Therefore7 it is obvious that When the Spring is in act-ion the lubricant will spread over the upper surface of the next adjacent leaf 5 and thus lubricate the contacting'surfaces. The leaf 5 isv also provided with a vertical passage or bore 20, whereby .the lubricant. after passing along the duct Ain the upper wing operation is repeated, and the lubriit passes through the bore 21 located in the third lowest leaf until the entire spring may be thoroughly lubricated.

lt is obvious that those skilled in the art may vary the details of construction and arrangements of parts Without departing from the spirit of my invention and therefore l do not wish to be limited to such fea-Y tures except as may be required by the clairn.

lVliat is claimed as new is:

half thereof7 and the inner end of the borel.

'llo

grease or like,l being introduced in the pintle leaf may work its WayV down -to the duet in ithe next lower leaf; whereupon the foie. number of leaves for the sole pui-pe:` Y` ofl A vehicle spring comprising a serios 0f llo 'contiguous bowed leaves, the bottom sur-` in the -uppermost leaf for the purpose set 10 faces of-the leaves being provided at each forth. A- I endv.with longitudinal grooves and a. series In testimony whereof I affix-my signaof secondary grooves branching from the ture in presence 'of two Witnesses.

5 said longitudinal rooves, the grooves in the` various leaves eing inter-commnnicat- ROSSITER B' SEMMELROTH' ing, 'and bolts for pivotally connectingthe ,Witnesses: Y spring'toa vehicle, said bolts having cen- FRANCIS N. HALLMANL 'tml bores communicating with the grooves ANnmnw J. WERNER. 

